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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Lower
Same as
None of these
Higher

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Hydraulics and Fluid Mechanics in ME
A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

None of these
Pascal’s law
Archimedes’s principle
D-Alembert’s principle

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

turbulent flow
uniform flow
laminar flow
steady flow

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Hydraulics and Fluid Mechanics in ME
In a free vortex motion, the radial component of velocity everywhere is

zero
non-zero and finite
maximum
minimum

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity

is large when fluid is more compressible
is independent of pressure and viscosity
has the dimensions of 1/pressure
increases with pressure

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Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

2
43924
1

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